Mobile computer battery



FIG. 1 is a rear perspective view of an ornamental design for a mobile computer battery;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a top view thereof.

The broken lines in the drawings illustrate portions of the mobile computer battery which form no part of the claimed design. 

CLAIM The ornamental design for a mobile computer battery, as shown and described. 